it's a weird one, for sure! my guess is: i don't think the co-worker died, i think all yan copies are like little breakaways of the coworker. he chose to give up the form that held the hurt & corruption as his primary, but is combined with the splinter that shared the truth & felt reciprocation.
if I could illustrate it, i think you can picture it as if you almost understand a formula. once you get the missing information, your logic connects it, and everything clicks into place. then you can form a new, full understanding of the formula you didn't understand before. like puzzle pieces completing a full image, i guess?
If there was a like button I would give it to you. I really liked this analogy.
I very much enjoyed the smexy scenes even though they where all over the place. But I’m confused about the coworker, does this mean the original one died? I just feel like the falling in love with Yan made zero sense. And the scene of hooking up with the coworker's after “saving” him made less sense besides just being smut. It was like a porn that wanted o have a good plot but couldn’t.